Combine first 2 ingredients and salt and pepper to taste and rub over meat. Heat oil in a heavy nonstick skillet over medium high heat. Cook steaks 3-4 minutes per side, or until cooked through. Transfer meat to a platter and set aside. Add onion and potato and saute 3 minutes. Stir in next 4 ingredients and bring to a boil, stirring frequently. Stir in green beans and meat. Cover and simmer over medium heat about 5 minutes or until heated through.